Jump to main content
Jump to site search

Issue 11, 2021
Previous Article Next Article

Cost and energy efficient cyclic separation of 5-hydroxymethyl furfural from an aqueous solution

Author affiliations

Abstract

The efficient separation of 5-hydroxymethyl furfural (HMF) – a platform chemical in biomass valorization – from the reactive aqueous mixture of sugars is key to improving its economic production. Here we demonstrate a cyclic fixed-bed process that selectively adsorbs HMF from the aqueous phase, purifies the solute, and enables its subsequent desorption in a suitable solvent for downstream applications. This intensified process bypasses the traditional energy-intensive recovery of HMF via vacuum distillation. The adsorption and desorption performances of a commercially available polymer-based spherical activated carbon (PBSAC) are quantified in batch and continuous systems. The effects of temperature (25–90 °C) and co-existence of other components from the fructose dehydration reaction (fructose, formic acid, and levulinic acid) on adsorption are evaluated. Model predictions based on parameters extracted from batch isotherms describe reasonably the continuous experimental breakthrough curve with suitable transport parameters. It is demonstrated that HMF can be selectively purified and recovered, and the adsorption column can be reused for at least seven cycles tested here. A simple analysis further showcases nearly tenfold cost and energy savings for HMF separation. The framework outlined here can be applied to other biomass solutes.

Graphical abstract: Cost and energy efficient cyclic separation of 5-hydroxymethyl furfural from an aqueous solution

Back to tab navigation

Supplementary files

Article information


Submitted
06 Mar 2021
Accepted
11 May 2021
First published
11 May 2021

Green Chem., 2021,23, 4008-4023
Article type
Paper

Cost and energy efficient cyclic separation of 5-hydroxymethyl furfural from an aqueous solution

Y. W. Hsiao, A. Anastasopoulou, M. Ierapetritou and D. G. Vlachos, Green Chem., 2021, 23, 4008 DOI: 10.1039/D1GC00841B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements